Hasibuan, Ongku Parmonangan, Jann Hidajat Tjakraatmadja, and Yos Sunitiyoso. “Integrated Strategy to Curtail Illegal Gold Mining: A Case Study in Central Kalimantan, Indonesia”. The Asian Journal of Technology Management (AJTM) 14, no. 1 (April 23, 2021): 1–18. Accessed May 5, 2024. https://journal.sbm.itb.ac.id/index.php/ajtm/article/view/3771.